全黄h全肉短篇禁乱np_欧美激情videossex护士_精品午夜寂寞影院在线观看 _黄色免费视频观看

Color steel composite plate prefabricated box-type substation

Product Overview


1. The double-sided color steel sandwich heat insulation board with flame retardant polystyrene foam sandwiched in the middle can reduce the impact of solar radiation on the temperature in the box.
2. The bottom cover is provided with circular convection cooling holes around the next four weeks, which has the function of natural ventilation and heat dissipation.
3. The high-voltage scheme is flexible and can be used for terminals and ring networks.
4. Low voltage can meet various wiring requirements.

Executive standards


Online inquiry


Provide customers with more secure, stable and intelligent solutions